10 yr
Warranty on selected batteries
See in 30 seconds how much plug-in solar and a battery could cut from your electricity bill.
Estimate for a typical UK home shifting peak electricity on off-peak rates.

10 yr
Warranty on selected batteries
£0
Plug-in setup — no electrician needed to plug in
A simple way to start generating your own electricity
£ Lowest Entry PricePanels plus a micro-inverter for plug-and-play generation.
↗ Scales up as you needCharge low, beat peak-time prices.
New to solar? Read the UK plug-in solar panels guide →
Your day, with a battery
The battery fills on off-peak rates, then supplies the modelled load through 16:00–19:00. Use selected appliances directly, or choose a qualifying installed system for household circuits.
£300 saved a year
£1.95 → £1.04 a day
Illustrative 2,700 kWh/year Economy 7 home with a 6.33 kWh battery, allowing for charging losses and about 330 useful cycles a year. Your result depends on tariff, losses and how much suitable appliance or installed load can be shifted.
Traditional solar and batteries need an installer and a day of work. Plug-in versions remove that cost entirely.
A plug-in solar kit covers daytime background use such as your fridge, router and chargers, for a fraction of the cost of a roof system.
Plug-in solar explained →Yes. Compliant solar-only plug-in kits up to 800 W can be used in Great Britain under the 2026 rules. Follow the kit instructions and complete the required Distribution Network Operator notification.
A real person, usually within one working day.
Battery Expert
Typically replies instantly
Hi! I'm the Plug-In Energy battery expert. Fox ESS and Marstek batteries are in stock and typically arrive in 3–5 working days. What can I help you with?